DH USŁUGI DENYS HNIEDYI

43.21.Z - Installation of electrical systems

33.14.Z - Repair and maintenance of electrical devices

43.35.Z - Performing other finishing construction works

43.42.Z - Performing other specialized construction works related to the construction of buildings

43.99.Z - Other specialized construction works, not classified elsewhere

61.10.B - Activities in the field of wired, wireless, and satellite telecommunications

61.90.A - Activities in other telecommunications fields

61.90.B - Activities in other telecommunications fields

81.22.B - Other cleaning of buildings and industrial premises, not elsewhere classified